Belt sander



FIG. 1 is a front perspective view of a belt sander showing our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The evenly broken lines in the drawings illustrate portions of the belt sander that form no part of the claimed design. 

CLAIM The ornamental design for a belt sander, as shown and described. 